roof down and MPG ...

[Anonymous]

Does having the roof down help or increase MPG? if so by how much ?
I would have thought there would be little change as with the roof down you dont get the same "parashoot" effect of just the windows down ..

[Slacey]

Theoretically MPG will be worse with the roof down as he aerodynamics are seriously compromised, but in practice it doesn't make much of a difference in my experience, I seem to get 320 miles to a tank regardless of where the roof is!

[Anonymous]

i get between 36 to 38 all the time no matter if the roofs down up around town or down the M way

Gr   s:lol: :lol: s:lol:    s:lol: :lol: s:lol:

[Anonymous]

when i have the roof down on a dual carriageway, i can definately feel a difference in accleration. only affects the acceleration once aerodynamics and drag come into effect (probably about 50-60mph)

so if the engine has to work harder, then it must affect MPG

[heathstimpson]

I seem to get 320 miles to a tank regardless of where the roof is!

320miles is a lot ot a tank; I've never got that much.   s:shock: :shock: s:shock:  Must be using the right foor too much  s:? :? s:?

[Slacey]

I seem to get 320 miles to a tank regardless of where the roof is!

320miles is a lot ot a tank; I've never got that much.   s:shock: :shock: s:shock:  Must be using the right foor too much  s:? :? s:?

Trust me, I'm never gentle with the throttle, but I get that MPG all the while, no matter how I drive - there usually is a fair amount of motorway though.